CN208966292U - Beam pumping unit and its balancing device - Google Patents
Beam pumping unit and its balancing device Download PDFInfo
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- CN208966292U CN208966292U CN201821440119.0U CN201821440119U CN208966292U CN 208966292 U CN208966292 U CN 208966292U CN 201821440119 U CN201821440119 U CN 201821440119U CN 208966292 U CN208966292 U CN 208966292U
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Abstract
The utility model discloses a kind of beam pumping unit and its balancing devices, belong to field of oilfield exploitation.The balancing device includes: support frame, two balance weights, motor, gear and rack gear.Under the drive of the motor, support frame can drive balance weight to move back and forth along the length direction of the walking beam by the idler wheel that its bottom is arranged, to constantly change position of two balance weights relative to beam pumping unit supporting point, it can be with the dynamic regulation balancing device to the trimming moment of beam pumping unit, and adjustable range is big, so as to reduce crank peak torque in up-down stroke, control the fluctuation range of crank output torque, and then reduce the electric energy loss of beam pumping unit, it is preferable to the counterbalance effect of beam pumping unit.
Description
Technical field
The utility model relates to field of oilfield exploitation, in particular to a kind of beam pumping unit and its balancing device.
Background technique
Currently, beam pumping unit is widely used on oil field to recover the oil.Beam pumping unit mainly include motor,
Retarder, four-bar mechanism, horse head and sucker rod, wherein four-bar mechanism includes crank, connecting rod and walking beam.Beam pumping unit exists
In the course of work, the high speed rotary motion of motor can be converted to by retarder and four-bar mechanism horse head up and down repeatedly
Movement.At work, the load of up-down stroke is extremely uneven: in upstroke, horse head lifts sucker rod to beam pumping unit, electricity
Motivation acting is larger, and motor inputs to one biggish positive-torque of crank；In down stroke, sucker rod pulls horse head to transport downwards
Dynamic, motor does not need to do work at this time, and crank exports a biggish negative torque under the action of horse head.It is bent in up-down stroke
The fluctuation of handle output torque is big, and the load variation of motor is greatly, higher so as to cause the energy consumption of motor, it is therefore desirable to which that setting is flat
Device weigh to reduce the load difference of beam pumping unit motor in up-down stroke to reduce energy consumption.
In the related technology, balance weight is generally set on walking beam or crank, and installs auxiliary balance device additional to reduce electricity
The load of motivation is poor.The auxiliary balance device is generally the weight that walking beam tail portion is arranged in, and is put down by the arm of force variation of weight
The load of weighing apparatus pumping unit.
In the balancing device of this auxiliary, since moving counterweight frame is only in the tail portion of walking beam with the bottom on walking beam
It is dynamic, cause the auxiliary balance device small to the trimming moment adjustable range of beam pumping unit, in up-down stroke, crank output
The fluctuation of torque is larger, causes the energy consumption of motor higher, therefore the auxiliary balance device imitates the balance of beam pumping unit
Fruit is poor.
Utility model content
The utility model provides a kind of beam pumping unit and its balancing device, can solve balance in the related technology
The device problem poor to the counterbalance effect of beam pumping unit.The technical solution is as follows:
On the one hand, a kind of balancing device of beam pumping unit is provided, described device includes: support frame, idler wheel, two
Balance weight, motor, gear and rack gear；
The bottom of support frame as described above is arranged in the idler wheel, and the wheel face of the idler wheel is contacted with the surface of walking beam；
Described two balance weights are symmetricly set on the two sides of support frame as described above；
The rack gear is fixed at side of the walking beam far from ground, and the length direction of the rack gear is parallel to institute
State the length direction of walking beam；
The motor and the gear are each attached on support frame as described above, and the motor is connect with the gear, for driving
The gear rotation is moved, the gear is engaged with the rack gear.
Optionally, the protrusion direction of teeth is parallel to the contact surface of walking beam Yu the idler wheel, the gear in the rack gear
Axis direction perpendicular to the contact surface.
Optionally, support frame as described above includes: support base, and is symmetricly set on two of the support base two sides and matches
Weight frame；
The motor and the gear are arranged in the support base；
Each balance weight is arranged on a counter-balanced carriage；
Each counter-balanced carriage is provided with the idler wheel close to one end of the walking beam.
Optionally, the support base includes: support base and the support base is arranged in far from the walking beam side
Hollow mounting base；
Through-hole is provided on the support base, the through-hole is connected to the mounting base；
The gear shaft of the gear is arranged in the through-hole and the mounting base, and the motor is arranged in the mounting base
Side far from the walking beam, and the output shaft of the motor and the gear axis connection.
Optionally, the gear shaft is multi-diameter shaft, is provided with boss on the inner wall of the mounting base, the boss is far from institute
The side for stating walking beam is provided with first bearing；
The first bearing is socketed on the gear shaft；
Screw thread is additionally provided on the gear shaft, the gear shaft is connect with nut, and the nut is located at described first
Side of the bearing far from the boss.
Optionally, second bearing is arranged close to the side of the walking beam in the boss；
Sleeve is provided between the first bearing and the second bearing, the sleeve and the second bearing are socketed
On the gear shaft.
Optionally, described device further include: sealing plate；
The sealing plate is connect with each counter-balanced carriage and the support base respectively, the sealing plate with it is described two
Counter-balanced carriage and the support base form a closed cabinet.
Optionally, described device further includes at least one position-limited wheel；
Each position-limited wheel is mounted on the first counter-balanced carriage close to one end of the walking beam, and the wheel of each position-limited wheel
The rear-face contact in face and the rack gear, the back side of the rack gear are the one side opposite with the setting face of teeth.
Optionally, each counter-balanced carriage is provided with upper roller group and bottom roller group close to one end of the walking beam, and every group
Roller group includes at least two idler wheels；
The two sides of the walking beam include the convex edge of the plate extended along the length direction of the walking beam；
The wheel face of each idler wheel and a side contacts of the convex edge far from ground in the upper roller group；
The wheel face of each idler wheel is with the convex edge close to a side contacts on ground in the bottom roller group.
On the other hand, a kind of beam pumping unit is provided, the beam pumping unit includes: walking beam and is arranged in institute
State the balancing device as described in terms of above-mentioned on walking beam.
The beneficial effect of technical solution provided by the utility model includes at least:
It includes: support frame, two that the utility model, which provides a kind of beam pumping unit and its balancing device, the balancing device,
A balance weight, motor, gear and rack gear.Under the drive of the motor, support frame can be driven by the idler wheel that its bottom is arranged
Balance weight is moved back and forth along the length direction of the walking beam, is supported to constantly change two balance weights relative to beam pumping unit
The position of point, can be with the dynamic regulation balancing device to the trimming moment of beam pumping unit, and adjustable range is big, so as to
Crank peak torque in up-down stroke is reduced, controls the fluctuation range of crank output torque, and then reduce beam pumping unit
Electric energy loss, it is preferable to beam pumping unit counterbalance effect.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the balancing device of beam pumping unit provided by the utility model；
Fig. 2 is the structural schematic diagram of a kind of gear and rack gear provided by the embodiment of the utility model；
Fig. 3 is a kind of partial structural diagram of beam pumping unit balancing device provided by the embodiment of the utility model；
The structural schematic diagram of Fig. 4 another beam-type balance device provided by the embodiment of the utility model；
A kind of Fig. 5 side view of beam-type balance device provided by the embodiment of the utility model；
The partial structurtes signal of the balancing device of Fig. 6 another beam pumping unit provided by the embodiment of the utility model
Figure；
A kind of Fig. 7 top view of the balancing device of beam pumping unit provided by the embodiment of the utility model；
A kind of Fig. 8 structural schematic diagram of beam pumping unit provided by the embodiment of the utility model.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment provides a kind of balancing device of beam pumping unit, as shown in Figure 1, the device can be with
It include: 01, two balance weight 02 of support frame, motor 03, gear 04, rack gear 05 and idler wheel 06.The idler wheel 06 is arranged in the branch
The bottom of support 01, and the wheel face of the idler wheel 06 is contacted with the surface of walking beam 07.
Two balance weights 02 can be symmetricly set on the two sides of the support frame 01.The rack gear 05 can be fixed at the trip
Side of the beam 07 far from ground, and the length direction of the rack gear 05 is parallel to the length direction of the walking beam 07.The motor 03 and should
Gear 04 is each attached on the support frame 01, which connect with the gear 04, for driving the gear 04 to rotate, the gear
04 engages with rack gear 05.
When motor 03 drives the gear 04 rotation, gear 04 can be relative to rack gear 05 along the length direction of the walking beam 07
It is mobile, and then support frame 01 can be driven mobile, which can drive balance weight by the idler wheel 06 that its bottom is arranged
02 moves along the length direction of the walking beam 07.
In conclusion the utility model provides a kind of balancing device of beam pumping unit, which includes: branch
Support, two balance weights, motor, gear and rack gear.Under the drive of the motor, the rolling that support frame can be arranged by its bottom
Wheel belt dynamic balancing weight is moved back and forth along the length direction of the walking beam, is pumped to constantly change two balance weights relative to beam type
The position of machine supporting point, can be with the dynamic regulation balancing device to the trimming moment of beam pumping unit, and adjustable range is big, from
And crank peak torque in up-down stroke can be reduced, the fluctuation range of crank output torque is controlled, and then reduce beam type and take out
The electric energy loss of oil machine, it is preferable to the counterbalance effect of beam pumping unit.
Fig. 2 is the structural schematic diagram of a kind of gear and rack gear provided by the embodiment of the utility model.As shown in Fig. 2, the tooth
The protrusion direction of teeth 051 can be parallel to the contact surface 07a of walking beam 07 Yu idler wheel 06 in item 05.The axis direction of the gear 04
It is parallel with the contact surface 07a perpendicular to the rotational plane of contact surface 07a namely the gear 04.
Optionally, referring to Fig. 1, which may include: support base 011, and be symmetricly set on the support bottom
Two counter-balanced carriages 012 of 011 two sides of seat.Each counter-balanced carriage 012 can be connect by bolt with the support base 011.Motor 03
It can be set in the support base 011 with gear 04.
Fig. 3 is a kind of partial structural diagram of beam pumping unit balancing device provided by the embodiment of the utility model.
As shown in figure 3, each balance weight 02 is arranged on a counter-balanced carriage 012.At least one has can be set on each counter-balanced carriage 012
First through hole 0121.Correspondingly, can be set in each balance weight 02 corresponding extremely at least one first through hole 0121
Few second through-hole 021.
It is exemplary, two the second through-holes 0121, the circle of this two the second through-holes 0121 can be set on each counter-balanced carriage 012
The axis collinear of the line of the heart and the counter-balanced carriage 012.
Each balance weight 02 can be fixedly connected with counter-balanced carriage 012 using bolt or rivet.For example, bolt can pass through
The first through hole 0121 and the second through-hole 021, each balance weight 02 and a counter-balanced carriage 021 are linked together.Alternatively, can be with
Be put into rivet in first through hole 0121 and the second through-hole 021, rivetted with riveting gun, so as to realize each balance weight 02 with
The connection of one counter-balanced carriage 012.
Optionally, boss is also provided on each counter-balanced carriage 012.It, can be first by balance in fixed balance weight 02
It weighs 012 to be placed on the boss of a counter-balanced carriage 012, can then use bolt or rivet by balance weight 02 and counter-balanced carriage
012 links together.Exemplary, which can be plate structure.
Referring to Fig. 1, each counter-balanced carriage 012 is provided with idler wheel 06 close to one end of walking beam 07, which can pass through spiral shell
Bolt is connect with each counter-balanced carriage 012.
Fig. 4 is the structural schematic diagram of another beam-type balance device provided by the embodiment of the utility model.Fig. 5 is this reality
With a kind of side view for beam-type balance device that new embodiment provides.Referring to fig. 4 and Fig. 5, each counter-balanced carriage 012 is close to trip
One end of beam 07 is provided with upper roller group A and bottom roller group B, and every group of roller group includes at least two idler wheels 06.
The two sides of the walking beam 07 include the convex edge 071 of the plate extended along the length direction of the walking beam 07.Upper roller group A
In each idler wheel 06 wheel face and a side contacts of the convex edge 071 far from ground.The wheel of each idler wheel 06 in bottom roller group B
Face is with the convex edge 071 close to a side contacts on ground.It can be to avoid the balancing device with walking beam by setting bottom roller group B
When formula pumping unit works, it is detached from walking beam 07, to ensure that the stability of the balancing device.
Optionally, the number of the upper roller group A and the idler wheel 06 in bottom roller group B can be equal, and upper roller group A is under
Orthographic projection of the roller group B on convex edge 071 is overlapped.It is exemplary, upper roller group A and bottom roller group B is set on each counter-balanced carriage 012
It can respectively include 4 idler wheels.
Referring to Fig. 1, which includes: support base 0111 and is arranged in support base 0111 far from the walking beam 07
The hollow mounting base 0112 of side.The mounting base 0112 can be connect by bolt with the support base 0111.
Fig. 6 is the partial structurtes signal of the balancing device of another beam pumping unit provided by the embodiment of the utility model
Figure.As shown in fig. 6, being provided with through-hole (being not shown in Fig. 6) on the support base 0111, which is connected to the mounting base 0112.
In the through-hole and the mounting base 0112, which be can be set in the mounting base for the setting of gear shaft 041 of the gear 04
0112 side far from walking beam 07, and the output shaft 031 of the motor 03 is connect with the gear shaft 041, can drive the gear 04
Rotation.Optionally, which is servo motor.
It should be noted that the gear shaft 041 is greater than the output shaft of the motor 03 close to the diameter of one end of the motor 03
031 diameter, and the shaft end (close to one end of the motor 03) of the gear shaft 041 is provided with the first groove, first groove
Internal diameter is equal with the diameter of output shaft 031 of the motor 03, and the output shaft 031 of motor 03 can be inserted in first groove.This
Outside, it is provided with the second groove on the output shaft 031 of the motor 03 and the gear shaft 041, when the output shaft 031 of the motor 03 is inserted
When entering first groove, first by the second groove pair on the second groove and the gear shaft 041 on the output shaft 031 of motor 03
Together, flat key is inserted into second groove after, so as to realize the company of the gear shaft 041 with the output shaft 031 of the motor 03
It connects, thereby may be ensured that gear 04 can rotate under the drive of the motor.
Referring to Fig. 6, which can be structure as a whole with the gear shaft 041, thereby may be ensured that the balancing device knot
The stability of structure, and its manufacturing cost can be reduced.
Balancing device provided by the embodiment of the utility model can also include two bearings, be used to support the gear shaft
041.In use, bearing generates axial movement relative to axis, needs pair bearing when bearing axial load in order to prevent
The inner ring and outer ring of bearing carries out axial restraint.As shown in fig. 6, being provided with boss 01121 on the inner wall of the mounting base 012.It should
Boss 01121 is provided with first bearing 08 far from the side of walking beam 07, which is socketed on the gear shaft 041, should
The outer ring of first bearing 08 is placed on the boss 01121, to fix the outer ring of the gear shaft 041.Optionally, the gear shaft
Screw thread (not shown) is additionally provided on 041, which can connect with nut 09, and the nut 09 be located at this
One side of the bearing 08 far from the boss 01121, for fixing the inner ring of the first bearing 08, and the nut 09 and the gear shaft
041 junction is additionally provided with stop washer (being not shown in Fig. 6), can prevent the nut 09 from loosening.The optional nut 09
It can be round nut, correspondingly, the stop washer can be round nut stop washer.
Referring to Fig. 6, which is provided with second bearing 10 close to the side of walking beam 07, the second bearing 10 it is interior
Circle be placed on the shaft shoulder of the gear shaft 041, the outer ring of the second bearing 10 is contacted with the boss 01121, with fix this second
The outer ring of bearing 10.It is provided with sleeve 11 between the first bearing 08 and the second bearing 10, the sleeve 11 and second bearing 10
Can be socketed on the gear shaft 041, and the sleeve 11 can the inner ring with the first bearing 08 and second bearing 10 connect
Touching, so as to fix the inner ring of the first bearing 08 and the second bearing 10, and then limit the first bearing 08 with this second
The axial displacement of bearing 10.The inner ring of the first bearing 08 can be fixed by the nut 09 and the sleeve 11, the second bearing
10 inner ring can be fixed by the shaft shoulder of the gear shaft 041 and the sleeve 11.
Exemplary, the first bearing 08 and second bearing 10 can be deep groove ball bearing.
A kind of Fig. 7 top view of the balancing device of beam pumping unit provided by the embodiment of the utility model.Referring to fig. 4 and
Fig. 7, the device can also include: sealing plate 12.The sealing plate 12 can by bolt respectively with each counter-balanced carriage 012 and support
Pedestal 011 connects, and a closed case can be formed between the sealing plate 11 and two counter-balanced carriages 012 and support base 011
Body.It thereby may be ensured that that the elements such as the intracorporal motor of closed case and gear are arranged in is free from the influence of the external environment.
Optionally, the sealing plate 12 and counter-balanced carriage 012 and the junction between support base 011 are also provided with
Sealing strip, to guarantee that the junction is seamless, it is ensured that the leakproofness of the cabinet.Exemplary, which can be sealing joint strip.
Balancing device provided by the embodiment of the utility model further includes at least one position-limited wheel 13, referring to fig. 2 and Fig. 4, often
A position-limited wheel 13 is mounted on the first counter-balanced carriage 012 close to one end of the walking beam 07, and the wheel face of each position-limited wheel 13 and the rack gear
05 rear-face contact, the back side of the rack gear 05 are the one side opposite with the setting face of teeth 051.Wherein, first counter-balanced carriage 012
It can be the counter-balanced carriage that 051 side of teeth of rack gear 05 is located remotely from two counter-balanced carriages.
Position-limited wheel 13 can with limiting gear 04 under the action of the radial force of rack gear 05 along the direction far from the protrusion of teeth 051
Offset, avoids entire balancing device from shifting, thereby may be ensured that and tightly engage between gear 04 and rack gear 05, avoid gear
04 and rack gear 05 mutually wear, guarantee the balancing device energy normal use.
Also, by that can swimming in the balancing device by the rear-face contact of the wheel face of position-limited wheel 13 and rack gear 05
When moving back and forth on beam 07, which can roll at the back side of the rack gear 05, so as to reduce position-limited wheel 13
With the frictional force of the rack gear 05, guarantee balancing device normal movement.
It is exemplary, two position-limited wheels 13 can be installed close to the side of the rack gear 05 in the first counter-balanced carriage 012, to ensure to limit
Position effect.
Optionally, the length direction for extending perpendicularly to rack gear 05 of the central axes of the position-limited wheel 13, and the position-limited wheel
13 rotational plane is parallel to the rotational plane of gear 04.Also, the position-limited wheel 13 05 back side of rack gear orthographic projection along the tooth
The axis of 05 length direction of item, the orthographic projection with the gear 04 at 05 back side of rack gear are total along the axis of 05 length direction of rack gear
Line.It is possible thereby to guarantee when balancing device moves back and forth, position-limited wheel 13 can apply one and gear 04 to rack gear 05
The power opposite to the active force of the rack gear 05, so that 05 stress balance of rack gear.So that the rack gear 05 is to 04 He of gear
The reaction force of position-limited wheel 03 balances, to guarantee that the balancing device will not shift along the direction far from 051 protrusion of teeth, energy
Enough normal uses.
Optionally, which can also include retarder, and the output shaft 031 of the motor 03 is connect with the retarder, this subtracts
The output shaft of fast device can be connect with the gear shaft 041 by flat key, the high-speed motion of motor 03 can be converted to gear
Low-speed motion.
In conclusion the utility model provides a kind of balancing device of beam pumping unit, which includes: branch
Support, two balance weights, motor, gear and rack gear.Under the drive of the motor, the rolling that support frame can be arranged by its bottom
Wheel belt dynamic balancing weight is moved back and forth along the length direction of the walking beam, is pumped to constantly change two balance weights relative to beam type
The position of machine supporting point, can be with the dynamic regulation balancing device to the trimming moment of beam pumping unit, and adjustable range is big, from
And crank peak torque in up-down stroke can be reduced, the fluctuation range of crank output torque is controlled, and then reduce beam type and take out
The electric energy loss of oil machine, it is preferable to the counterbalance effect of beam pumping unit.In addition, the balance device structure is compact, occupied space
It is small, and using the kind of drive of rack-and-pinion, transmission efficiency is high, and stability is good, can be used for different types of beam type oil pumping
Machine, so as to increase substantially the degree of balance of beam pumping unit.
Fig. 8 is a kind of structural schematic diagram of beam pumping unit provided by the embodiment of the utility model.As shown in figure 8, should
Pumping unit may include: walking beam 07 and the balancing device 00 that is arranged on the walking beam 07, which can be such as Fig. 1 extremely
5 it is any shown in device.
As shown in figure 8, the beam pumping unit can also include fuselage 14.The machine of the walking beam 07 and the beam pumping unit
Body 14 connects.
The working principle of the balancing device of beam pumping unit provided by the embodiment of the utility model is as follows:
When beam pumping unit upstroke works, horse head is lifted up sucker rod by lower dead center, and the output shaft of motor drives
Gear rotation, gear drive support frame and balance weight to move along the direction close to beam travelling tail end.When sucker rod runs to top dead centre
When position, which is moved to beam travelling tail end extreme position.
When beam pumping unit down stroke works, horse head discharges downwards sucker rod by top dead centre, and motor changes output shaft rotation
Turn direction, band moving gear rotation reversely rotates, and gear drives support frame and balance weight to move along the direction close to walking beam head end.When
Balancing device is moved to the head end extreme position of walking beam when sucker rod runs to bottom dead center position.
As described above, beam pumping unit completes the circulation of a job, with the work of beam pumping unit, the balance
Device carries out cyclic movement on walking beam, constantly changes position of the balance weight on walking beam, it is flat can dynamically to adjust this
Device weigh to the trimming moment of beam pumping unit, reduces crank peak torque, controls crank output torque fluctuation range, thus
Reduce the energy consumption of beam pumping unit.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of balancing device of beam pumping unit, which is characterized in that described device includes: support frame, idler wheel, two balances
Weight, motor, gear and rack gear；
The bottom of support frame as described above is arranged in the idler wheel, and the wheel face of the idler wheel is contacted with the surface of walking beam；
Described two balance weights are symmetricly set on the two sides of support frame as described above；
The rack gear is fixed at side of the walking beam far from ground, and the length direction of the rack gear is parallel to the trip
The length direction of beam；
The motor and the gear are each attached on support frame as described above, and the motor is connect with the gear, for driving
Gear rotation is stated, the gear is engaged with the rack gear.
2. the apparatus according to claim 1, which is characterized in that
The protrusion direction of teeth is parallel to the contact surface of walking beam Yu the idler wheel in the rack gear, and the axis direction of the gear hangs down
Directly in the contact surface.
3. the apparatus according to claim 1, which is characterized in that support frame as described above includes: support base, and is symmetrical arranged
Two counter-balanced carriages in the support base two sides；
The motor and the gear are arranged in the support base；
Each balance weight is arranged on a counter-balanced carriage；
Each counter-balanced carriage is provided with the idler wheel close to one end of the walking beam.
4. device according to claim 3, which is characterized in that the support base includes: support base and is arranged in institute
State hollow mounting base of the support base far from the walking beam side；
Through-hole is provided on the support base, the through-hole is connected to the mounting base；
The gear shaft of the gear is arranged in the through-hole and the mounting base, and the motor setting is separate in the mounting base
The side of the walking beam, and the output shaft of the motor and the gear axis connection.
5. device according to claim 4, which is characterized in that the gear shaft is multi-diameter shaft, the inner wall of the mounting base
On be provided with boss, the boss is provided with first bearing far from the side of the walking beam；
The first bearing is socketed on the gear shaft；
Screw thread is additionally provided on the gear shaft, the gear shaft is connect with nut, and the nut is located at the first bearing
Side far from the boss.
6. device according to claim 5, which is characterized in that the boss is provided with second close to the side of the walking beam
Bearing；
Sleeve is provided between the first bearing and the second bearing, the sleeve and the second bearing are socketed in described
On gear shaft.
7. according to any device of claim 3 to 5, which is characterized in that described device further include: sealing plate；
The sealing plate is connect with each counter-balanced carriage and the support base respectively, the sealing plate and described two counterweights
Frame and the support base form a closed cabinet.
8. device according to any one of claims 1 to 5, which is characterized in that described device further includes at least one position-limited wheel；
Each position-limited wheel is mounted on the first counter-balanced carriage close to one end of the walking beam, and the wheel face of each position-limited wheel with
The rear-face contact of the rack gear, the back side of the rack gear are the one side opposite with the setting face of teeth.
9. according to any device of claim 3 to 5, which is characterized in that each counter-balanced carriage is close to the walking beam
One end is provided with upper roller group and bottom roller group, and every group of roller group includes at least two idler wheels；
The two sides of the walking beam include the convex edge of the plate extended along the length direction of the walking beam；
The wheel face of each idler wheel and a side contacts of the convex edge far from ground in the upper roller group；
The wheel face of each idler wheel is with the convex edge close to a side contacts on ground in the bottom roller group.
10. a kind of beam pumping unit, which is characterized in that the beam pumping unit includes: walking beam and is arranged in the trip
Balancing device as described in any one of claim 1 to 9 on beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440119.0U CN208966292U (en) | 2018-09-03 | 2018-09-03 | Beam pumping unit and its balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440119.0U CN208966292U (en) | 2018-09-03 | 2018-09-03 | Beam pumping unit and its balancing device |
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| Publication Number | Publication Date |
|---|---|
| CN208966292U true CN208966292U (en) | 2019-06-11 |
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ID=66754345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821440119.0U Active CN208966292U (en) | 2018-09-03 | 2018-09-03 | Beam pumping unit and its balancing device |
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| Country | Link |
|---|---|
| CN (1) | CN208966292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251099A (en) * | 2021-06-24 | 2021-08-13 | 胜利油田北方实业集团有限责任公司 | Automatic balance adjusting device of beam-pumping unit |
-
2018
- 2018-09-03 CN CN201821440119.0U patent/CN208966292U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251099A (en) * | 2021-06-24 | 2021-08-13 | 胜利油田北方实业集团有限责任公司 | Automatic balance adjusting device of beam-pumping unit |
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